A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5998-01-421-2773
NSN 6150-01-474-9758
NSN 5895-01-165-5794
NSN 6610-00-341-7549
NSN 5855-01-035-2866
NSN 6645-00-958-5299
NSN 5835-01-268-1924
NSN 6320-01-399-6177
NSN 6145-01-305-0137
NSN 5999-00-518-1007
NSN 5835-01-263-1293
NSN 6220-00-117-4547